The flowers themselves are small, appearing in February and March, while the fruits are 18–24 millimetres (0.71–0.94 in) in length, brown and with a generally ovoid to globose shape.

This species is endemic to the Mexican state of Baja California, distributed from just south of the international border near the Jacumba Mountains to the central desert and Isla Angel de la Guarda.

[5] It is locally common in arroyos and canyon bottoms, and has been observed growing in rock crevices at higher elevations.

Brahea armata has an attractive appearance, especially when young, and is commonly available at nurseries in the American southwest and in warm temperate locations elsewhere.

[6] It is drought tolerant (although occasional deep irrigation is recommended), can handle both partial shade and full sun, and temperatures down to −10 °C (14 °F).